Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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Out Of Stock
HK MP5, HK90 Series Forearm Sling Pin - Quick Detach Attachment
HKP HK Parts
$37.95HKP Quick Detach Sling Attachment Sling Pin - Small The small push pin is used to retain the forearm to the receiver on the HK90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...HKP-18071$37.95 -
HK USP, Mark 23 Magazine, Complete - .45 ACP - 17 Round
HKP HK Parts / Heckler & Koch
$119.95HK Parts and Heckler and Koch complete .45 ACP 17-round Magazine for HK Mark 23 and HK USP Each mag comes fully assembled and ready for use. HK Parts takes an existing German HK 12 round magazine coupled with the +5 magazine extension and...HKP-19465-M$119.95 -
On Sale
HK MP5, SP5K Extractor Spring - 9mm
MKE
Now: $5.95Was: $6.95MKE HK MP5, MP5K - Extractor Spring - 9mm Extractor spring for all 9mm HK variants including clones. This spring is the #1 repair & replacement item for the MP5 and MP5K family of firearms. Compatible With: HK MP5 HK MP5K HK SP5 HK...HKP-22481Now: $5.95Was: $6.95 -
HK MP5, SP5, HK94 Handguard - 9mm - Lightweight
B&T Brugger & Thomet
$259.95B&T Brugger & Thomet HK MP5, SP5, HK94 Handguard - 9mm - Lightweight - Tri-Rail B&T's Lightweight Tri-Rail Handguard is almost 25% lighter with practically identical construction. The handguard offers a total of three NAR/Picatinny rails. One...HKP-19737$259.95 -
On Sale
HK Sling Pin - Large - Quick Detach Attachment
HKP HK Parts
Now: $29.95Was: $37.95HKP Quick Detach Sling Attachment Sling Pin - Large The large stock push pin is used to retain the stock to the receiver on the 90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...HKP-18070Now: $29.95Was: $37.95 -
HK VP9, P30 Magazine Floorplate - 9mm, .40 S&W - 10 Round
H&K Heckler & Koch
$8.95Heckler and Koch Rubberized Floor Plate for HK VP9, VP9SK, VP40, P30, P30L, and P30SK HK German rubberized factory floor plate. Compatible With: VP9 VP40 P30, P30L, P30S P30SK 10 round mags VP9SK 10 round mags Please Note: This will not work or...HKP-01616$8.95 -
On Sale
HK P30SK, P2000SK Magazine Sleeve
X-Grip
Now: $13.95Was: $15.95VP9SK, P30SK & P2000SK - USPC/P2000 Mag Adapter X-Grip The XGRIP HK, VP9SK, P30SK & P2000SK are patent pending OEM factory accessories for the HK, V P30SK, and P2000SK that enhance the versatility, look, and feel of the gun. The XGRIP...HKP-00910Now: $13.95Was: $15.95 -
HK45, USP LEM Conversion Kit - Complete
H&K Heckler & Koch
$138.95H&K Heckler & Koch HK45, USP, USPC Kit - LEM - Complete - Universal HK German "universal" LEM conversion kit for USP, USPC & HK45, and HK45C pistols. This kit converts your V1-V10 HK Pistol to the LEM configuration. Each LEM kit includes all...HKP-00316$138.95 -
HK MP5K Trigger Housing - SEF Navy Style - Push Pin - 9mm - USED
H&K Heckler & Koch
$74.95H&K MP5K 9mm SEF Navy Style Trigger Housing - Push Pin - USED HK German factory date coded SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push pin firearms that do not require a clipped and pinned housing...HKP-19997-USED$74.95 -
On Sale
HK MP5SD Rubber Handguard
HKP HK Parts
Now: $135.95Was: $169.95HK MP5SD Rubber Handguard Made in the USAFits: MP5SD 9mm, MP5SD .40, MP5SD 10mm Counts as 1 US made 922r compliant part. These are only compatible with the HK Parts shroud. If you have a German Shroud you will want to get the German Handguard. HKP-00136HKP-17400Now: $135.95Was: $169.95 -
On Sale
HK MP5 Magazine Clamp - .22LR
GSG German Sports Guns
Now: $14.95Was: $29.95GSG German Sports Guns Magazine Clamp for HK MP5 .22LR Each HK-style mag clamp is made of steel and is the highest quality aftermarket magazine clamp ever made. Holds two magazines together for tactical use and faster mag changes. Available...HKP-00791Now: $14.95Was: $29.95 -
On Sale
HK VP9 Series Trigger Pull Spring Set
Lazy Wolf
Now: $17.95Was: $19.95Lazy Wolf Guns Duty/Defensive Carry Enhanced Trigger Pull Spring Kit Based on the Lazy Wolf Guns Design. We now have an intermediate drop in set of springs for the utmost in performance and reliability in ALL VP9 family pistols. Defensive carry,...HKP-19515Now: $17.95Was: $19.95